COSMETIC TREATMENT METHOD INVOLVING A COMPOUND CAPABLE OF CONDENSING IN SITU

• US 20130034509A1
• Filed: 12/15/2010
• Published: 02/07/2013
• Est. Priority Date: 12/18/2009
• Status: Abandoned Application

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Cassin, Guillaume, Samain, Henri, Candau, Didier, L'Alloret, Florence, Roudot, Angelina
• Application Number:
  US13/516,546
• Publication Number:
  US 20130034509A1
• Time in Patent Office: Days
• US Class Current: 424/59
• CPC Class Codes: A61K 2800/884 Sequential application
• CPC Class Codes: A61K 8/33 containing oxygen
• CPC Class Codes: A61K 8/35 Ketones, e.g. benzophenone
• CPC Class Codes: A61K 8/4933 having sulfur as an exocyclic substituent, e.g. pyridinethione
• CPC Class Codes: A61K 8/585 Organosilicon compounds
• CPC Class Codes: A61K 8/676 Ascorbic acid, i.e. vitamin C
• CPC Class Codes: A61K 8/86 Polyethers
• CPC Class Codes: A61Q 17/04 Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/002 Aftershave preparations

Abstract

The present invention relates to a method for the cosmetic treatment of the skin involving a compound, or set of compounds, capable of condensing in situ.

Claims

1. A method for treating skin, the method comprising:

(I) applying a compound A, which is capable of condensing in situ to form a condensed material comprising a free reactive function F_A, on an area of the skin; and

(II) applying a compound C comprising a reactive function F_C, which forms a covalent bond by reaction with the function F_A, to area of skin.

2. The method of claim 1, wherein the condensed material is soluble in water, and compound C is selected so that reaction of the compound C on the condensed material decreases the solubility of the condensed material in water.

3. The method of claim 1, wherein the compound A comprises an organic silicon compound comprising 1 to 3 silicon atoms and at least two hydroxyl or hydrolyzable groups.

4. The method of claim 1, wherein the function F_A is an amine.

5. The method of claim 1, wherein compound A has a formula:

6. The method of claim 1, wherein the compound A is γ

-aminopropyl triethoxysilane (APTES) or a derivative thereof of APTES.

7. The method of claim 1, wherein the compound A comprises a first compound A1 which is γ

-aminopropyl triethoxysilane (APTES) or a derivative of APTES, and a second compound A2, which is methyl-triethoxysilane (MTES).

8. The method of claim 1, wherein compound C is a compound that modifies a physicochemical surface property of the skin, and

wherein the applying (I) and (II) results in a cosmetic conditioning of said area of the skin.

9. The method of claim 8, wherein compound C comprises a conditioning polymer.

10. The method of claim 1, wherein the applying (I) and (II) results in a cosmetic modification of a biological activity of said area of the skin.

11. The method of claim 1, the applying (I) and (II) results in a coloring of said area of the skin.

12. The method of claim 1, comprising, in the following order:

applying the compound A to said area of the skin;

optionally rinsing said area of the skin; and

applying the compound C to said area of the skin.

14. The method of claim 1, wherein the function F_A is a primary amine.

15. The method of claim 1, wherein the function F_C is a halogen atom, a carbonyl, a carboxylic acid, an ester, an amine, or a hydroxyl function.

16. The method of claim 1, wherein the function F_C is a carbonyl function.

17. The method of claim 4, wherein the function F_C is an aldehyde function, which is capable of reacting with an amine.

18. The method of claim 4, wherein the function F_C is an ketone function, which is capable of reacting with an amine.

13. A cosmetic kit comprising:

a first composition comprising, in a physiologically acceptable medium, a compound A, which is capable of condensing in situ on an area of skin to form a condensed material comprising a free reactive function F_A; and

a second composition comprising, in a physiologically acceptable medium, a compound C comprising a reactive function F_C, which forms a covalent bond by reaction with the function F_A.